<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Title</title>
</head>
<body>
	<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

<!--	  {{}}  插值表达式-->
	<div id="app">{{ message }}</div>

	<script>
		const { createApp, ref } = Vue     //解构赋值

		/*创建vue的应用实例*/
		createApp({
			setup() {
				const message = ref('Hello vue!')
				return {
					message
				}
			}
		}).mount('#app')
	</script>
</body>
</html>